chelating resin

chelating resin

[′ke‚lād·iŋ ′rez·ən]
(organic chemistry)
Any of the ion-exchange resins with unusually high selectivity for specific cations; for example, phenol-formaldehyde resin with 8-quinolinol replacing part of the phenol, particularly selective for copper, nickel, cobalt, and iron(III).
References in periodicals archive ?
They can be categorised into various forms including chelating resin, adsorbent resin, mixed bed resin, etc.
Pant, "Preconcentration and determination of trace metal ions from aqueous samples by newly developed gallic acid modified Amberlite XAD-16 chelating resin," Journal of Hazardous Materials, vol.
Hamdi, "Synthesis and properties of a copper selective chelating resin containing a salicylaldoxime group," Reactive and Functional Polymers, vol.
O ne method would be to use a chelating resin that can remove the dissolved ions, but this would also increase cost (due to the addition of additional equipment) and cause the removal of chromium ions at the same time.
The synthesized resin was applied for adsorption of nickel (II) ions comparing with the conventional DTOF chelating resin. The parameters affecting adsorption process as initial pH, agitation period, sorbent dosage, and initial concentration of Ni(II) ions were studied.
1989), or through capture of the positively charged unbound Al species on a cation-exchange or chelating resin (e.g.
A buffered sample is loaded onto a column packed with an appropriate cation exchange chelating resin. The anions pass through the column unretained while many of the cations are retained.
The chelating resin preconcentration method has excellent analytical features of nonselective multielement determination for many trace elements in seawater, along with efficient removal of matrix elements such as Na, K, Ca, and Mg [5-10].
In this work, chelating resin was prepared by chemical attachment of the chelating moiety, 4-(2-pyridylazo)resorcinol(PAR) onto silica gel using an eco-friendly chemical transformation.
Adsorption is widely used, especially in the surface with a chelating moiety of the chelating resin. During the past two decades, the use of chelating resin for metal ion preconcentration and separation has been considerably increased [l-5].